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A body of mass 0.5 kg is taken up an inclined plane of length 10 m and height 5 m and then allowed to slide down to the bottom again. The coefficient of friction between the body and the plane is 0.1. The work done by the frictional force over the round trip is
21
Oct
A body of mass 0.5 kg is taken up an inclined plane of length 10 m and height 5 m and then allowed to slide down to the bottom again. The coefficient of friction between the body and the plane is 0.1. The work done by the frictional force over the round trip is Work [...]
A car is moving along a straight horizontal road with a speed v0 . If the coefficient of friction between the tyres and the road is μ, the distance traveled by the car before it comes to is?
21
Oct
A car is moving along a straight horizontal road with a speed v0 . If the coefficient of friction between the tyres and the road is μ, the distance traveled by the car before it comes to is? A car is moving along a straight horizontal road with a speed v0. If the coefficient of [...]
A bullet moving with a speed of 100 ms^−1 can just penetrate two planks of equal thickness. Then the number of such planks penetrated by the same bullet when the speed is doubled will be:
21
Oct
A bullet moving with a speed of 100 ms^−1 can just penetrate two planks of equal thickness. Then the number of such planks penetrated by the same bullet when the speed is doubled will be: A bullet moving with a speed of 100 ms^−1 can just penetrate two planks of equal thickness. Then the number [...]
A silicon specimen is made into a P-type semiconductor by doping, on an average, one indium atom per 5 * 10^7 silicon atoms. If the number density of atoms in the silicon specimen is
21
Oct
A silicon specimen is made into a P-type semiconductor by doping, on an average, one indium atom per 5 * 10^7 silicon atoms. If the number density of atoms in the silicon specimen is A silicon specimen is made into a P-type semiconductor by doping On an average one indium atom per 5 * 10^7 [...]
Two metallic rings A and B, identical in shape and size but having different reistivities ρA and ρB, are kept on top of two identical solenoids as shown in the figure . When current I is switched on in both the solenoids in identical manner, the rings A and B jump to heights hA and hB, repectively , with hA > hB . The possible relation(s) between their resistivities and their masses mA and mB is(are)
21
Oct
Two metallic rings A and B, identical in shape and size but having different reistivities ρA and ρB, are kept on top of two identical solenoids as shown in the figure . When current I is switched on in both the solenoids in identical manner, the rings A and B jump to heights hA and [...]
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are kept on top of two identical solenoids as shown in the figure . When current I is switched on in both the solenoids in identical manner ,
identical in shape and size but having different reistivities ρA and ρB ,
repectively ,
the rings A and B jump to heights hA and hB ,
Two metallic rings A and B ,
with hA > hB . The possible relation(s) between their resistivities and their masses mA and mB is(are) ,
The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time I1 and I2 are the currents in the segments ab and cd. Then,
21
Oct
The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time I1 and I2 are the currents in the segments ab and cd. Then, have diameters [...]
In a coil of resistance 100 Ω , a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is
21
Oct
In a coil of resistance 100 Ω , a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in [...]
A circular loop of radius 0.3 cm lies parallel to amuch bigger circular loop of radius 20 cm. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 cm. If a current of 2.0 A flows through the smaller loop, then the flux linked with bigger loop is
21
Oct
A circular loop of radius 0.3 cm lies parallel to amuch bigger circular loop of radius 20 cm. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 cm. If a current of 2.0 A flows through the smaller loop, then the flux linked [...]
Which of the field patterns given below is valid for electric field as well as for magnetic field ?
21
Oct
Which of the field patterns given below is valid for electric field as well as for magnetic field ? Which of the field patterns given below is valid for electric field as well as for magnetic field ? October 21, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
If Np and Ne are the numbers of holes and conduction electrons in an extrinsic semiconductor, then
21
Oct
If Np and Ne are the numbers of holes and conduction electrons in an extrinsic semiconductor, then If Np and Ne are the numbers of holes and conduction electrons in an extrinsic semiconductor then October 21, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,